GS1920-48v2 Product name 48-port GbE Smart Managed Switch Switch class Smart Managed Port Density Total port count 50 100/1000 Mbps 44 Gigabit Combo (RJ-45/SFP) 4 Gigabit SFP 2 Performance Switching capacity (Gbps) 100 Forwarding rate (Mpps) 74 Packet buffer (byte) 1.5 M MAC address table 16 K Flash/RAM 32 MB/256 MB Power Input 100 to 240 V AC, 50/60 Hz Max. power consumption (watt) 36.9 Physical Specifications Item Dimensions (WxDxH)(mm/in.) 440 x 200 x 44.5/ 17.32 x 7.87 x 1.75 Weight (kg/lb.) 2.8/6.17 Included accessories Green Feature Fanless - Environmental Specifications Operating Storage MTBF (hr) 672,235 Heat dissipation (BTU/hr) 125.83 Acoustic noise @ 25°C (dBA) 26.0